1261891953

素因数分解:

$3^5\times 7^2\times {\mathrm{131}}^1\times {\mathrm{809}}^1$

素因数の和:969

約数の個数: 72

約数和(自身を含む): 2218376160

約数和(自身を除く): 956484207

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 81, 131, 147, 189, 243, 393, 441, 567, 809, 917, 1179, 1323, 1701, 2427, 2751, 3537, 3969, 5663, 6419, 7281, 8253, 10611, 11907, 16989, 19257, 21843, 24759, 31833, 39641, 50967, 57771, 65529, 74277, 105979, 118923, 152901, 173313, 196587, 222831, 317937, 356769, 458703, 519939, 741853, 953811, 1070307, 1376109, 1559817, 2225559, 2861433, 3210921, 5192971, 6676677, 8584299, 9632763, 15578913, 20030031, 25752897, 46736739, 60090093, 140210217, 180270279, 420630651, 1261891953]

約数ペア:

[(1, 1261891953), (3, 420630651), (7, 180270279), (9, 140210217), (21, 60090093), (27, 46736739), (49, 25752897), (63, 20030031), (81, 15578913), (131, 9632763), (147, 8584299), (189, 6676677), (243, 5192971), (393, 3210921), (441, 2861433), (567, 2225559), (809, 1559817), (917, 1376109), (1179, 1070307), (1323, 953811), (1701, 741853), (2427, 519939), (2751, 458703), (3537, 356769), (3969, 317937), (5663, 222831), (6419, 196587), (7281, 173313), (8253, 152901), (10611, 118923), (11907, 105979), (16989, 74277), (19257, 65529), (21843, 57771), (24759, 50967), (31833, 39641)]